You've read the 4C's of diamond grading, you know the GIA diamond grading
scale and every jeweler you know tells you D is the best and most
expensive color of diamond to own. Thus, when your name is drawn for a
contest where you can use your diamond knowledge to win a $50k prize, you
are ready to show off your diamond expertise. The contest: You are
presented with two diamonds, and asked to correctly identify which the of
two is the most valuable in order to win a $50,000 cash prize being
offered by your local radio station.
Here's the specs on the two
Diamond A: .33ct Oval diamond,
VVS1 clarity, proportions are GIA rated as " Very Good", symmetry is
"good". Color is intense blue.
Diamond B: .41 ct
Oval diamond, VVS1 clarity, proportions are GIA rated as "Very Good",
symmetry is "good", color is white/colorless, and GIA rated as "D".
Applying your 4C's, you deduce the
1. CUT: Both diamonds
are oval cuts, with proportion = Very Good and symmetry = Good, so no
edge to either diamond. Cut fails to help you tell which is more
CARAT: Diamond B
is .41ct vs. Diamond A's .33ct. Everyone knows that the bigger a
diamond is, the more expensive it is so, Carat
tells you that Diamond B has the edge.
3. CLARITY: Both
diamonds rate as VVS1 in clarity, so Clarity fails to show an
advantage to either diamond.
4.COLOR: Diamond A is
blue looking, something you've never seen, but Diamond B is white as
white can be, and the GIA cert shows it as a true 'D' color. Color clearly tells you that Diamond B
again has the edge.
Thus, using the 4C's, you
deduce via both carat and color that Diamond B is clearly more valuable
than Diamond A. You pat yourself on the back for learning those 4C's.
Now to go collect the $50,000 in prize money.....